Pump



J. M. STONE.

PUMP.

APPLICATION-FILED uns 21.1921.

r Patented Apr. 11, 1922.

v Syvum/H201,

JOHN 1vI."sToNE, 'or CARR-izo s'rniivesyrnxns.'

PUMP.

ySpecification of Letters Patent. Patented `Apr. 11, 19722.

Application filed Julie 21, 1921. Serial No. 479,205.

To all whom t may concern; Y

Be it known that I, JOHN M. STONE, a

Vcitizen of the United States, residing at Carrizo Springs,lin the county of Dimmit the same is maintained in proper condition at all times.

Another object of the invention vis 'to so lock the parts as to prevent any chance of becoming detached.

Other objects and advantages of the invention will be apparent from the followin description when taken in connection wit the accompanying drawing, in which:

Figure 1 is a longitudinal section through the pump.

Figure 2 is an enlarged section through a portion of the pump.

Figure 3 is a side view ofthe spider.

and Figure 5 is a plan view. of a rod coupling.

Referring tothe drawing more` in detail, the. numeral 1 designates the main barrel of the pump to which is threaded at the lower end thereof the cylinder 2, in which reciprocates the piston 3; the cylinder `forming a substantial extension of the barrel 1. The piston 3 and cylinder 2 are provided with the usual valves 4.- and 5, respectively.

The piston 3 is operated by means of the sucker rod 6, which may be formed of onek or more sections. In order to prevent vibrapacking 10 against the wall of the rod 6.

The upper end of the tube 7 .extends through Figure 4f is a-bottomV plan of the piston, i v I made without departing from the spirit of vthe invention; all such I aiin to include in the head 11 of the pump andiis provided with a threaded ring 12 against which the packing 13 is forced bythe packing gland 14. By the use of nut 11a all parts are securely locked together, i. e. by tightening up on the nut 112L the tube 7 is put under Y tension, and the barrel and cylinder are securely locked in position.

To prevent vibrations of the sucker rod the same is provided with a collar 15 formed withaplurality of ribs or bearing surfaces 16 which engage the inner wall of the tube 7. Where long joints or sections arefusedY these; collars may ybe secured at suitable in-4 tervals by means of aAset-lscrew. The collar Vmay also be'used as a coupling between sections ofthe rod, and, when so used, theinterior wall is provided-with screw threads. 'It will .be noted that the channels in .the rcoupling allow avfree passage ofthe lubricant.

In operation the sucker rod is guided and supported by means of the s ider 8, tube 7 and coupling 15 and is wel lubricated by the packing 10 and 12. Y.

In laccordance with the patent statutes, I haveedescribed what I now believe to vbe the best'v embodiment of the invention, but I do Vnot wish to be understood thereby as limiting myself or the scope of the invention, as

many changes land, modifications inay bek the scope of the appended claims.

What I claim as'new and desire to secure by Letters Patent is:

l. Ina pump including a barrel and a cylinderconnected thereto, a piston, a sucker rod therefor, a tube through which the sucker rod extends, an integrally formed spider directly threaded to said'cylinder and tuloie, and means for placing a tension on said. tu e. v i

2.` In a pump including a barrel anda cyl#` i Y inder connected thereto, a piston, ajsuckeri rod therefor, a tube through which the sucker rod extends, a substantially conical integrally formed spider directlythreaded to said lcylinder and extending into-said barrel,

and means connecting said tube and; spider.

8. In a pump, a piston, a suckerrod there;V

for, a tube through which the sucker rod extends, a substantially cone shaped` spider Y' having a socket in its upper end, a packing rod extends, a spider directly connected to gland in said socket, the lower end of said said cylinder and tube, a. head at the top of tube being threaded to the spider and enthe barrel and snugly engaging the tube, and 10 gaginrr the packing gland. a nut threaded t0 said tube whereby the cyl- 4. pump including a barrel and a eylininder, spider, barrel and tube are held in der connected thereto, a piston, a sucker rod locked position. therefor, a tube through Which the sucker JOHN M. STONE. 

